AT&T Samsung Galaxy S4, version 4.2.2. Had Blocking Mode enabled & working, and was doing fine. I have it set to block all notifications and all phone calls except for the 6 contacts I have put into the Exception List. After a while, it quit honoring the start time - it would start later & later. I have confirmed, multiple times, that it was enabled & the proper settings were checked. I have turned off blocking mode, rebooted, & turned it back on & I have simply rebooted the phone - MANY times. Last night I received FB notifications all night long. I would prefer to use the native app, and definitely do not want to manually turn off the FB notifications every night. Any suggestions?